96 ZYGODACTYLI. 
edged with greyish-white. Throat, and centre of the 
belly white. Legs and feet woed-brown. 
Orver III. YOKEFOOTED. ZYGODAC- 
TY LI, (Zemm.) 
Tuts Order is separated into two great Divisions, by the 
form of the bill. The First Division contains the different 
Genera, in which the bill is more or less curved, and are all, 
with the exception of a single species of the Genus Cuculus 
(Cuckoo), exotic. The Second contains such as have the bill 
straight and angular; and of the three Genera which form 
this division, species of two of them are extended to Europe, - 
viz. of the Genus Picus (Woodpecker), and Genus Yunx 
(Wryneck.) 
CHARACTERS OF THE ORDER. 
Feet having two toes directed forwards, and two back- 
wards. Bill in one division, more or less curved, in the other 
straight and angular. 
The peculiar formation of the feet gives great power to 
this order in grasping their perch, or supporting themselves 
upon an inclined plane; and we accordingly find that its 
genera, are all inhabitants of the forests. Many are strictly 
climbers, scalmg, without any difficulty, the trunks and main 
branches of the trees. Others have the faculty of hanging 
with ease from the small branches in apparently the most 
constrained attitudes: these may be termed Graspers. 
The food of the genera that have the bill much curved, 
chiefly consists of pulpy fruits, nuts, and seeds. 
The Genus Cuculus, and others nearly allied to it, live 
upon insects ; which are also the food of the members of the 
second division. 
